1 Astrology
1.1 Origin
1.2 Color
Colorless, White, Blue, gray
Blue
1.3 Streak
1.4 For which Rashi?
Not Available
Sagittarius, Scorpio
1.5 Planet
1.6 Element of Planets
Not Available
Not Available
1.7 How to Wear?
1.7.1 Finger
Not Available
Not Available
1.7.2 Ring Metal
Not Available
Not Available
1.8 Energy
1.9 Deities
1.10 Not to wear with
Not Available
Not Available
1.11 Powers
1.12 Birthstone
1.12.1 Planetary
Not Available
Not Available
1.12.2 Talisman
Not Available
Not Available
2 Physical Properties
2.1 Tenacity
2.2 Solubility
Not Available
Not Available
2.3 Durability
Not Available
Not Available
2.4 Specific Gravity
2.5 Fracture
White, Yellow, Pale blue, Brittle, Uneven
ConchoidalArthur Thomas, Gemstones (2009)
2.6 Cleavage
Perfect on {100} and {010}, imperfect on {101}
None, but may exhibit slight parting
2.7 Mohs Hardness
2.8 Chemical Composition
Not Available
(Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)
3 Optical Properties
3.1 Luster
Vitreous, Greasy
Vitreous
3.2 Pleochroism
Weak
AbsentWalter Schumann
3.3 Dispersion
3.4 Transparency
Not Available
Gemmological Tables (2004)
3.5 Refractive Index
1.672-1.6761.735-1.790
1
3.25
3.6 Optic Character
Not Available
Not Available
3.7 Crystal System
3.8 Birefringence
0.019-0.021Not Available
0
0.296
3.9 Clarity
Not Available
TransparentUlrich Henn and Claudio C. Milisenda
4 Benefits
4.1 Physical
4.1.1 Neurological
Not Available
Not Available
4.1.2 Cardiovascular
Not Available
Not Available
4.1.3 Respiratory
Not Available
Not Available
4.1.4 Reproductive
Not Available
Not Available
4.1.5 Digestive
Not Available
Not Available
4.2 Psychology
Not Available
Not Available
4.3 Healing
Not Available
Not Available
4.4 Qualities Associated
Not Available
Not Available